Adding attachment for type-writers.



No. 883,081. 4 PATENTBD MAR. 24, 1908.

H, H BURTON. .Y ADMNG ATTAUHMBNT EUR TYPE WRITERS.

APPLICATION FILED AUG. 18, 1906.

5 SHEETS-SHEET l.

No. 8823,1081. v PATBNTED MAR 24, 1908, R BUBTN.

'DDNG ATTACHMENT PQR TYPE WRITBRS APPLIATIOT FILED AUG.18. 1906` 5 SHBETS-SHEET 2.

PATENTEU MAR. 2%? 1908,

TRES,

y 5 SHEETS-SHEET 3.

N VEN 701/? EN E WS 233ML 4 I u. ff. BLTRTON. Mmm@ ATTAHMENT POR TYPE WRI APPLICATION FILED AUG,18. 1906` Noi 883,031 i FATLNTED MAR, 21%; M03. H. H BURTUN.

ADDNG TTGHMENT FR TYPE WRERS.

APPLIOATIGH FILED AUG. 18.1906.

W/T/VESSES No. 883,081. I PATENTED MAR. 24, 1908. H. H. BURTON.

ADDING ATTACHMENT EUR TYPE WRITERS.

APPLICATION FILED AUG,18,1906.

5 SHEETSSIIEBT 5.

/A/ VEN 70H jzfe' Tuy hf. fuffa i@ .4 TTOHNE YS s NEW HENRYAHALLECK BURTON, OF LOS LA'NG.E11ES,I`GLIFORNIA.

ADDING ATTACHMENT igoR TYPE-WRITERS.

No. 883,081..r i

Specification of Letters Patent.`r

Application filed August 18, 1906. Serial No. 531,156.

To all whom/it vmay con-cern: f

Be it knownpthat I, HENRY HALLECK' BUR- TON, a citizen of the United States, and a resident of Los Angeles, in the county of Los Angeles and Statcof California, have invented a new and Improved Adding Attachment for Type-Writers, of which the following is a full, clear, and exact description.

This invention relates to an adding attachment adapted to be secured to any common form of typewriter, and whereby columns of figures being printed by the typewriter may be autol'natlcally addedand thel total determined.

' The adding attachmentis very simple and' (':oinpact` and when secured to atypewriter .interferes in no way with the'normal operation of the machine. It may be readily removed or disconnected when not in use and when in use may bev adjusted to any portion oi the machine, whereby a column ot figures may be added irrespective ol' their relative locatlo'n as regards the. width of the 'paper upon which the figures are being printe Reference isto be had to the accompanying drawings forming a part of this specification, inwhich similar cl'nuacters of reference indicate corresponding parts in all the 'ligures, in which 4 i Figure 1 is a vertical section ythrough a portion of a typewriter having my adding 'attachment secured thereto; Fig.. 2 is a lron t elevation of the parts shown in Fig'. 1,:1 portionthereoi1 beingon the section hne 2--2 of Fig. 1,' Fig 3 is a front elevation of the numeral wheels as seen from the lront, with the cover of the protecting rase removed 3 Fig. 4

which the numeral wheels are turned, Fig. 5 rs a detail showing the means whereby each numeral wheel is rotated one `point upon thel rotation oi' the numeral wheel ol' next lower denomination thromfh ten mints' Fier. 6 is a showing the l means whereby" each numeral i wheel is returm-xd to the zero position; Flg. l2

is a plan view of' a perforated plate carried by.

1s a detailed view showing t he mcchanisl'n by n the typewriter carriage; Fig. 13 is an attachment for the plate shown in Fig. 12, and by me'ans Yof which lthe adding attachment may .be moved `tenjpoints by the carriage.; Fig. 14 is a detailed view of a portion of this operating mechanism.; Fig. 15 is a plan view of two 1 of the numeral wheels showing the means whereby each is locked in position during the rotation of the wheel of next higher denomination; Fig. 16 is a side elevation of the parts shown-in Fig. 15j Fig. 17 is a detail showing the means whereby the adding attachment may he readily detached from the key-bars of a tvpewriter; and Fig.' 18 is adeta'il show-1 PatentedMarch 24, 1908.

ing 'the means of attaching the-operating' arms to the main shaft.

To more fully illustratemy improved adding attachment and the method in which it operates, I have shown in the drawings a porltlon of a typewriter, having a main 'rame 1, v

a roller 2, a carriage 3, key-barst, and keys' 5. In the front side of the machine and hack of the keys, I secure the main frame 6 ofA my tahulator,` and movable within. this frame 1S a frame or casing 7, carrying the numeral wheels and parts for operating the same; This frame or casing 7 is adapted tov he moved along the typewriter frame simultaneously with the movement of the carriage anddirectly in front of the column of Vfigures being printed upon the paper. For operating the mechanism inclosed. within this casing '7, I provide a shaft 8, extending the en-v tirelength of the machine and having a plurality of arms 9 extending forward therefrom and secured thereto. Each arm Qis referably provided 4with a. slot through which eX- tends a pin 8 carried by the rod 8, so that the rod mustturn as'the arm is-depressed, but the rod is free to be turned hy any one of the arms 9 without being interfered with by any other arm. its normal position hy a spring 9a, suspended -l'rom a rod 9*. 'The front end of each of these arms is connected to one of the numeral keys of the rnacliinc'in the following manner: Each ninnernl' hey-har 4 provided with a hand 1i) surrounding the same and provided at its upper end with a hook 11 adapted to engage with a link 1.2 secured. to the end of one oi' the arms 9 hy means .of a coiled. spring in this manner when any of the numeral keys are struck, the lowering oi' the key-bar draws down upon the link 12 and coiled spring 1.3 -to lower the end of the .slil

arm 9 and rotate the shaft 8. It is Adesired.

`seen that the shaft S is rotated a different 1 each sind all haring f y a lock-nut l5 directly bethe arms Q .wherehy each of these v its upper end at any desired operate as a stop to limit the movethe arm. 9 above the same. .As-the ment o1 numeral lreyhar e is lowered, the arm 9 emi fr 'downward until it contacts with the y ent ci the numeral key-hars is erted dueto the expansion ol the coiled spring. i

ln theinanner above described, it' will be amount lfor each numeral ke -har and that normal action oi the he ar 1s not interfered with in any way byv aving the above v from "he hey-har secured thereto, l provide a', har l through which all of the links l2 pass aid har l@ in such a ina-nner noved in an endwise direction red distance. 'As the hey-hars o llir held against sidewise movet will he' noted that by pulling onalin re "n hei'idle i7 attached to the end oi the har 16,

of theli'nlrs 12 mayfbe disooni the hool. 1l and Athe entire ophhemsm of the adding attachment thus separated from the typewriter. 1 p

Extending haclrward from the shaft YBuild rigidly .secured thereto, is a single lever- 18 Linlr 19, connected to a. second level-- 2O intermediate its ends andpiroted on a bracket 2i extendingdbaclrward from thel main frame of my a ing device. By the lowering of any one of the numeral key-bars Ll, it he noted that the free end of the lever 2O mmv he raised, and it is through the instrumei l of this lever that the nui merel wlnels of the deiiice are rotated.

The adding device proper comprises' the main casing or'frame 7, havii'uy ainain shaft 22 mounted in the opposite sides thereof and provided with a plurality of numeral Wheels.

As shown, these wheels are ten in number and the de ce is thus `capaliile of adding columns of iigures to show a total one less than ten hillicn (l ,i300 000,909).

'lila-ch numeral wheel 23 isV Jfree to rotate on the shinU 22 and is provided with a double row ol' teeth aroun l its circumference, One of these rows of teeth 24 is continuous, and the number oi eeid teeth is amultiple of ten. The second row of teeth is spaced twice as iar apart as are the tee'h in thefirst menl tioned rer; and every iiith tooth, corresp'onding to every tenth tooth in the'other. row 24, from the outer circumference, urality oigaps 26 each. equivalent three twthin the row Ofir lv wheel there are pro'- tated ten points. l :of each numeral wheel 1s arranffed aseries of le; beneath the same and then further l ent rotation thereon.

which are located opposite the gaps 26 in the lvided a pluralityof teeth 27, extending in ithe direction ofthe axis of the wheel, and

row 25. The teeth 27 are thus spaced opposite every tenth tooth ofthe continuous row 24, and it is by means of these side teeth 27 that each wheel is rotated one point as each wheel of the next lower denominationisirof On. the outer circumference figures ,runnin from 0 to 9, and the distance between said l gures isexactly equal to the distance between the teeth of the continuous row 24, whereby as said wheel is rotated, the numerals may be caused to pass' 1n front I ol"v a suitable window or opening in the protecting casing and the extent to which thel wheel is rotated may be observed,

For causing the intermittent rotation of one wheel ,during the rotation of the Wheel of next lower denomination, I' provide the means, a detail of which is shown in Fig. '5. This 'means comprises a shaft 28 having a plurality of pinions 29 mounted for independ- Each of these pinions has one end thereof meshing with the co'ntinuous row of teeth 24 on one of the numeral wheels, and has the other end somewhat larger'and extending adjacent the wheel of next lower denomination, wherebl7 it may engage with they side teeth .27.l T e the plnions'is so regulated that'as a numeral Wheel is' rotated and a side toothengages Vwith a pinion 29, it will-'0111 remain'in en? gagement therewith for a su cient length of 4time to cause the rotation of the next adjacent numeral wheel in which the pinipn is Ain engagement?y through a single point orva distance equivalent to the width of a single tooth of the-*continuous row. The side and the numeral wheel .of next-`h1gher denomination will remain stationary until the next sideA tooth 27 contacts with the inion 29'and causesfthenumeral wheel o nnext hi her denomination to rotate through anoterpoint. A

For rotating the numeral wheels as lthe tooth 27 maythen pass o n and`v the pinlon 29 f k s of the typewriter are operated', I prvi e a plurality of all'ni's"'30lr pivotedto the shaft 22'adjacent-each of the said numeral wheels, andthe outer end of each of these arms is providedl with a pawl 3 1, adapted to engage with the continuous row of `teeth on the adjacent numeral wheel. This pawl is sup or'ted in`a slotted bracket l3 2 on the un er side ofthe arm 30 and has its outer end erforated for the insertion of one end of a bel crank lever 33, normallyheld'downl by a sprin 34. Thereare as many of these arms as t ere are numeral` wheels. As the simultaneously with the `movement lof 'the carriage, each ofthe pawls` 33 on the arme' 30 is'brought in successlongover the 'end of the lav l tabulator moves across thety'pewriter frame the weight olf said lever suliicient to cause lil) limit or' movement is reeehed, seid limit he-A ingg' determined hy the length ot the stud be` nenth the arm 9 ol the particular key which is pressed d,o\vrt.wn,rd,. the lever 20 is lowered by the return of the typewriter key, the pressure on the hell crank lever 33 is witl'idrewn and the pewl 31 instantly enthe teeth ol the numeral wheel, and

the rote tion of seid wheel. `Ils the extent to which the erm 33 is raised Iis dependent upon which of the typewriter keys is operated, it is evident that the wheel may he rotatedl varying amounts through the employment oli hut single lever 2t). To preventthe wheel lrom :ieeidentztlly rotating ineJ wrong direct-ion due to the pewl 3l remaining in engagement with the teeth7 or due to any other causes, l movide e suitable dog 3.5 onthe upper side ol' the wheel end in engagement with the eontinuous row of teeth, whereby the wheel may freely rotate in one direction hut is prevented from rotating in the other direction.

[is the pewl 3l is in contact with its nu-l `which the wheel ol next lower denominetion rotates, it is necessary to intermittently unloch mich wheel es the one of lower denomination passes the zero `ioint. To eccomplish 'this' l provide :1` pl pi'votnlly red in the upper part el" the tzihulntor c ling, :uid each.' suspended edjevent ,t he reatr ol' eheh el 'the nun'ierel wheels. @sich ol' 'the hers 36 has its lower end Il? bent :il en ongle and provided with en open topped pocket or recess .'Wndapteil to receive 'the poul 3l when the erm il() is in its nornml poeitioir .ltlech olt the hers 2);() is provided with en inclined hier 3), intermediate its ends :nid so loomed that the side teeth 27 el the adjacent wheel contacts,.tlierewith et the urelity olE hers 36,V

. out rotating thenuinerel v-rheei pinion 2t, and, further nimh/ement olE thisA wheel is prevented bythe return o'l the her 36 to its verticel position end the return olE the pewl 3]. into engagement with the coin tinuous teeth es the side tooth 27V moves pest the lug on the seid hun The here 36 erenormnlly held in e vertice-l positioi-'i hy springs 40 adjacent their upper ends. I l

For eil'cotively preventing theeccidentel rotation of enywheel during the rot-ation olf the wheel of next higher denoniinetion previde e plurality of armsll eeeh pivoted on shaft 42 and having a lug or tooth 43 inten mediate its ends end adapted to engage with the continuous teeth on the under side of e numeral wheel. The end of the erin extends e'eonsidereble distance beyond seid lug. 13 and is bent over to contact with the 4under side of arm 30 of the next adjacent wheel of lower denomination. "When -this erm is et rest it forces the lug out of engagement with the teeth in opposition to the action ol: e spring `44, and thus 'none et the wheelslere normally locked et this point, but es soon any one of the arms 3d is raised, en erm el muy also reiseend its lug t3 will come into engagement with the teeth on the under side ot the numeral Wheel of next lower denomination and effectively prevent its accidentel rotation. n.

e The arising' of the adding; device elsoeerries e. shaft 45, supported within the seme-end provided with a plurality ot' pinions 46 rigidly secured thereto, one pinion for each of the numeral wheels. kThese pmlons ere norm elly out or engagement with the numeral wheels and occupy the relative position thereto indii cated in Fig. 10,.neniely, adjacent the side of the numeral wheel. on which the intermittent row of teeth are located ,The shaft 45 is earpehleof longitudinal inovei'nent end is normally held in one extreme position ny e )inions ren rotate lreelv et this 1)oint Witlv v Y U l i The shalt Ll5 xsind its pinions ere loeeted it such e point on the eireuml'erenee oi u, set o5 numeral wheels that wh yn a, gap of erich el the numerel; wheels is opposite its corresponding pinion 46.,` the xero on thdt numeral. wheel will he opposite its smell window in the freine or easing 7 inclosing the nurnerel wheels.

,lin the manner ehovefdescrihml, erich of the numeral wheels is rotated tothe extent Further rote-'tien of" iis permitted by the particular key on the typeiacent wheel one point, and how the wheels are again set at zero, has been fully set fith.

.In order that the operation of the device may be complete, it is necessary that the casing 7, inc osing the numeral wheels, be moved along'thetypewriter frame simultaneously with the movement of the typewriter carriage as the figures are printed on the paper. To accomplish. this, I mount the casing 7 in an openingin theframe 6 and so arranged that it may slideffin a'longitudinal directon and thus bring each of the 'arms for rotating the wheels, over the lever 20.

The frame 6 is provided with an upwardlyextending aria/i9, havingr a lever 50 pivoted to a branch of the s'ame.- This lever has its lower end in engagement with a. ratchet bar 51 mounted on the casing 7, and has its ,'upper end in engagement with a similar from right to left.

ratchet bar 52, carried by. the typewriter carriage and facing in an'op osite direction to the ratchet bar 51. This ever 5() is nor-l mally held in engagement with both ratchet bars by a spiling 53, whereby the casing 7 inclosin'g the numeral wheels 23, is held stationary while the carriage is at rest. The

vcasin0V 7 1s rovided with a coiled s vrin 54,

normally tendine to draw the casing in the same direction that the carriage moves during the operation ofthe typewriter, namely', The casing, when at is extreme position, to the iight, has one of the arms 30 of a lefthand numeral wheel 28 in engagement with the lever 20, whereby if not shown. As.' the typewriter carriage moves, Athe ratchet bar 52 carried thereby `5o forces the end of the lever50 outward andV into the next notch in' said ratchet bar.

This outward movement of the upper end of the lever 50 results in a corresponding 1n.- ward movement of 'the lower end of 'said lever and the spring 54 is permitted'to pull? said casing 7 one notch to theleft. Longitudinal movement of the adding device through morethan rone space ata time is prevented by the engagement of the inner end 56 of the lever 55 with thevseries of teeth 57 on the under side of the casingj.

Thelever is normally out lor' engagementv with the' teeth but is-brought into engagement therewith each time a numeral key 1s operated. The exact distance moved by the carriage and the tabiilator casing need not necessarily be the same as the distance ofthe first depends upon' the space between the letters as printed up'on the paper, While the distance traveled by the second depends upxon Athe distance between the numeral w eels 24and their correspondingarms 30.

If now a numeral key is struck, the numeral carried thereby will e printed on the paper adjacent the one last printed andthe numeral wheel adjacent the left-hand one will be rotated a number of points corresponding to the numbercarried by the key In this manner the tabulator casin :moves ste by step to the left, land the stri v'ing of the eys Vin succession and the printingof a number having a plurality of digits, results in the recording of this number on the several numeral wheels withinv the tabulator easing. The tabulator casing, as shown, contains but ten numeral wheels, but it is evident that any number of' wheels may be provided, depending upon the `size of the numbers being printed.-

To prevent the sudden movement of the casing' through more than one point when a key is struck, I provide a lockimy mechanism adapted to vhold the casing llrom such freedom of motion, Pivoted to the arm 21 0f the frame 6 is a, lever 55, having one end 56 adapted to. engage with a series of teeth 57 lever is normally held outfof engagement with said teeth by the weight of the free end of thelever 20. As said leverl() is raised by the link 19 and arm 18, a ball 58"on the opposite. end of the lever 55. forces the. end 56 1n engagement with said teeth and limits the movement thereof. The lever 55 carries a link-59, pivoted to a second lever 60, havin its end adapted to engage with a series oV teeth 61 on the under side of a plate 62, having the ratchet 52- above referred to, and .which issecured to the typewriter carriage. The teeth 57 and 61 are both comparatively ne and the space between said teeth is com-l paratively great, so that as soon as the typef writer key is struck, the lever end 56 enters the teeth 57 and positively locks the casing against auyalongitudinal' movement what-v ever, while the end of the lever 60 enters the opposite side of a small tooth and does not interfere with the movement of thetypewriter carriage through a single space. After the type strikes th'.` paper on the roller 2 and pressure is removed from the keyfthe typewriter carriage'moves'a single step, and untilthe end of the lever 60 contacts, with the next tooth of theseries 61. When the key is returned to its normal position, thelever end 56 is freed from engagement withv the4 teeth 57 and the spring 54 is 'permitted to draw the casing of'theY attachment one space controlled by the lever 50 and its engagement with the ratchet bars 51 land 52.

As it is sometimes desired to print acol umnl of figures down one portion of a sheetof i paper and at other times to print it upon i other portions of the paper, it is necessary that the relative posit-ions of the typewriter carriage and of4 the casing of the attachment be varied. To acconiplish 'tliis, I provide the t pewriter carriage with a long plate 65 c of su stantially-th'e saine length `as the scale 64 on the carriage, but as the casing is located at 'one si'de of the center of the niacliine, the plate 63 is located with. one end thereof substantially even with the 25-niark on thescale. This plate 63 is provided with a series of holes, the same distance' apart as' the points on the scale, 'and the plate 62 having the teeth Gland ratghet 52 is secured to lthis plate'by means of a plurality of pins 'carried by s rin s 66 on the upper f'a'ceof the plate. 1e p ate 62 is laced at any desired position along the lengt i of the plate 63 and the springs 66 hold `the pins 65 in the holes of the plate and secure the latter in place. The position of the plate' may""be varied at l will `and with but very littletrouble. When the plate 62 is secured to the plate 63,' adjacent its lefthand end,it vWill have its leftvhand toothin engagement with the end of the lever 50, when the carriage is moved to its extreme' position and the column offigures will be printed adjacent theleft-hand side. of the aper. l

Ifpit is desired that a column of figures be printed down through lthe center of a lsheet 5g of paper, the plate 62 is shifted to a position adjacent the center of the plate 63 and if the carriage be moved to the extreme4 rifflit any Subj ect matter desired ymaybe printer on the` paper without interfering with the tabulat- 10 ing attachment, but when 'the typewriter attachment has traveled the required distance for the ratchet bar .52 -on the plate 62 lto 'come into engagement with the lever 50, Athen if a' numeral ke be struck, the. corresponding numeral wil appear on theleft-hand ynumeral'wheel.v

For automatically returning the tabulator casing 7 to its operating or right-hand position, I may provide the typewriter carriage 5o with any suitable bar or bracket-67 extendi ing downward therefrom and engaging with an end of the casing 7, whereby as the typewriter `-carriage .approaches its rightdiandposition-the har or bracket 67 engages with the tabulator casing'7 and forces'it also to its right-hand position. n.

. It is possible for an operator to writeso rapidly that the arin 20 would not have time t0l descend tb its normal position before the -next key of the machine is depressed, and ,it

' `'will be noted that in my in'a'chine this is revented by having the teeth 57 -so placer on `the botto'r'ngof the casingl that the casing is allowedto move only enough to the left to*4 the typewriter frame and enable the arm" 20 to descend in theI space between the two adjacent levers 30. V\ hen the arm 2Q has rearhedits lowest limit and forced the arm '56 out ofengagement `with the teeth, then the tabulator casing 7 is' al-I lowed to complete its movement and. bring bottoni of theplate 62 that the typewriter vcarriage is allowed to move to the left only av 'of thev other yon the paper-but there will be no error'i'n' the addition.

Various ,lianges may be made in the'construction of the machine as will be very evident. The adding attachment may be fastened to' any part of the typewriter frame, on

the outside, on eitherend, ror on the insidev as -shown in the drawings; as many styles rof typewriters do riot'have enough space within Byarranging the teeth the ,frame above the keyboard to fasten the attachment in the manner illustrated. 'not essential that` the casing 7 should be directly in front of the columnjof figures, to be added, as by extending the shaft 8 beyond putting the/,plate 63 in the proper.position, the attachment can be worked at either end of the typc r` writer, but this arrangement is to he avoir ed if possible, for the reason that as it extends beyond lthe machine, it is niore liable .to bef injured than the more compact form shown in the drawings.l I

By omitting a tooth in the plate 6l, the decimal point maybe printed by the ty pewriterwitliout resulting in the lateral move* vment of the tabulator casing and by leaving a space 'between certain of the teeth on the ratchet 52, the typewriter carriage may be moved any distance independently of tlielat tachnient.

Having thus described my invention, JI clainras new and desire to secure by Letters Patent:v

1. In combination with a typewriter hav inga carriage, an adding be attached tliereto,`said adding'devic coniprising a plurality of numeral wheels, a shaft upon which said wlieelsare mounted, an arm 4pivoted to said shaft adjacent each wheel,

and means adapted to engage with said levers 1n succession to rotate said wheels.

ing a carriage, Aan adding device adapted to be attacliedthereto, said adding device com-v prising a 'plurality of numeral wheels, a shaft upon which said wheels are mounted, an arm It is' l2. In combination with a typewriter hav-Y iio i device adapted t0., .v i i 70` the next lever 30 over the arm 20; so also 1 with the teeth 61, which are so placed on the pivoted to said shaft adjacent each/wheel, means for rotating each numeral wheel when its corresponding arm is moved in one direction, and means adapted to engage with said arms in succession to rotate said Wheels.

3. In combination with a typewriter hav ing a' carriage, an adding 'device' adapted to be attached thereto, said adding device comprising a plurality4 of numeral wheels, a'shaft upon which said wheels are mounted, a plurality of arms pivotedto said shaft, one arm being adjacent each wheel, means adjacent the end of each arm for engaging with the corresponding wheel .for rotating the same when the arm is moved in one direction,

means for preventing the,rotation of the' wheels when the arms are moved'. in theopposite direction, and means adapted to engage with said arms in succession to rotate said wheels.

4. ln combination, a plurality of numeral ke'ys, a shaft, a plurality ofwheels on said shaft, a lever arm pivoted on said shaft and adjacent each of said numeralwheels, means connected to'sai'd keys and adapted to open ate said levers, and means for moving the numeral wheels in respect to said operating means, whereby any one of the levers may be operated to rotate its corresponding wheel.

5. In combination, a typewriter having a carriage, la plurality of numeral keys, an adding Adevice attached thereto, means for moving said adding device each time a numeral key'of the typewriter is operated, and means riage, a ratchet bar carried by the carriage, a

ratchet bar carried by the adding device, and neans cooperating with said ratchet bars for permitting the movement of the adding device simultaneously with the movement of t the tyIpewriter carriage.`

n combination with a typewriter having a carriage movable thereon, a plate carried 'by said carriage and longitudinally adjustable in relation thereto, an adding device movable in respect to the typewriter, and means cooperating with theplate and the addingdevice for permitting the simultaneous movement of the two in the same direction .said means comprising a lever pivoted intermediate its ends and having its ends in engagement withsaid plate and said adding device. i

8. In combination, a` plurality of numeral keys, a shaft adapted to be oscillated at dif- -attached to the typewriter carriage ,for con-I trolling the movement ofthe adding device,

ferent amounts by each of said keys, a plu-- rality of numeral wheels, a pivoted arm corresponding to each wheel, means adapted to engage with one of said pivoted arms to cause the rotation of the corresponding wheel, and means for moving said arms in succession intov operative engagement with said last mentioned means.

9. 'In combination, a plurality of numeral keys, al shaft adjacent thereto, means con necting each of said. keys to said shaft, whereby theI shaft may be rotated diilerent amounts duringthe operation of each of said keys, a plurality of numeral wheels, a pivoted arm supported adjacenteach of'said numeral wlieels,`means.connected to said shaft and `adapted to raise one of said `ivoterd arms uplon the oscillation of said. sha t, and means W in'succession u on the successive operation ofsaidnumera keys.

10. .An adding device, comprising a suitable casing, a shaft su ported `in said casing, a plurality of miniera wheels supported on adjacent each ,of said numeral wheels, means for raising each of said lever arms in succession, land means ,carried by each of. said lever arms whereby it may be moved one direction independent of its numeral wheel,

wheel during movement of the opposite di -rection. p

11. An adding machine, comprising a lurality of wheels, 'a lever arm adjacent eac Lof definite distanceupon the movement of the adjacent wheel tlirough'a distance ten times arms to its .whe-el, and means for inoinentarily unlocking each wheel during its movement by the adjacent wheel. j

12. An adding machine, comprising a plurality of numeral wheels, each of said wheels having` a continuous row of teeth around the circumference the reofj, a tooth extending from the side of said wheel adjacent every tenth tooth on the` circumference thereof, means normally engaging the continuous row of teeth for rotating the saine, means adapted to coimerate with each of said wheels for independently operating the next' adjacent wheel, and means adapted to contact with said side teeth for disengaging the pawl from the adjacent wheel and permitting the interabove referred to. I

13. An adding machine, comprising a pluhaving a continuous row of teeth around the circumference thereof, a tooth` extending from the side of' said 'wheel adjacent every ereby said pivoted arms may be operated said shaft, a lever arm pivoted 'on said sha-tt, j

lsaid wheels and adapted to rotate the same, means for "rotating each of said wheelsra mittent rotation ofthe latter by the means.

rality of numeral wheels, each of said wheels Y but whereby it is locked to said numeral as great, means for locking each of said lever tenth tooth lon the circuinlercnee thereof, independent moans adapted to rotate each ol said'whe'cls, means tor norinaily locking vsaid Vrotating ineens 'to said wheels, means adapted-to coi'perate with said side teeth and' tinuous row of teeth around the circumfen ence thereof, a row ol numerals adjacent said teeth and correspoiiding -in number thereto, an ii'itermittent row ot teeth around 'the circumference of each olE said wheels, a

row ot side teeth on each of, said ivl'ieels, the distance bet-weon said teeth heiner `equal to the distance between ten of the teeth on the continuous row, means adapted to Contact with the continuous row otono wheel and the side teeth of the adjacent wheel for rotatingA the former a space of one tootlifas the latter rotates to the space of ten teetlnand means adapted to cooperate with. the interniittent row ol' teeth to rotate each of said wheels until the gaps in the intermittent rows of all of said wheels are in alincnient.

15. ln combination, a plurilvity oi numeral wheels, `each having a contihuous row ot teeth, and an intermittent row ol iteeth, the gra-ps in said intermittent row occurring opposite each tenth tooth in the continuous row, a shaft mounted'adjacent said wheels, a ,plurality ot pinions fixed the'reto, and means whereby upon the movement ot said shalt each of said pinion's, is brought -into engagement with the interinitteiitrow of teeth on one ol said Wheels, and whereby upon the rotation oit said shaft each of said numeral wheels is rotated until a gap in the intermittentrow of teeth comes ai'jacent the open f ating; pinion ol said wheel..

` of the tooth of a` lever with the adjacent wheel for positively locking the latter in posif' tion. j

17. In' combination with a plurality ol numeral keys, a shaft,- a plurality ol arms mounted on said shalt and corresponding' in number with said numeral keys, resilientl means connecting each of said arms' with its :intermittent rotation.

correspendingv immoral ley, indepeilnlent stops' iorlimiting' the movement ol each. erin, and resilient means for return'mi;- each arin to its original position after having,r been operated b y thenumeral key.

'18.' in combination-With a plurality oi' numeral. keys, a shaft, arms mounted. thereon. and movable relatively thereto, stops ried by said shaft tor limiting the movement of said arms in :respect thereto, resilient means connectingvone end of each of said arms to its corresponding numeral key, and stops adapted to engi withy each of said arms intermediate its ends for limiting its movement.

1Q. ln an adding machine, a plurality oi numeral vioeels, opercting means for inde- -j'ient'iently rota ting the same, Jniieiins toi intermittently rotating one u heel by the rotation ol another wheel, each olv said wheels having a .row of teeth, thel space between tivo et the adjacent teeth being ,greater than the distance between the other pairs oi :iidjacent teeth, a longitudinally movable. shaft mounted adjacent said wl'ieels, a plurality olj pinions rigid therewith, resilient means for moving' said shaft vlong ,j'itudinally in one direction to nori'nally' hold said pinions out oi engagement with said teeth, and manually controlled means for movin@ said shaft loi'igituM ddiiially in the other direction to bring the pinions into engagement with therows olf teeth of said wheels, whereby upon the rots.- tion of said shaft, each of said wheels is ro tated until -thegap in its row of teeth comes adjacent the corresj'ionding operating pinion.' 2t). In coinl'iin-ation, a plurality of numeral keys, a shaft supported-adjacent thereto, a A

tudinally movable bar in engagement with each of said resilient Ineens for simultaneously disconnecting all of the arms from their corresponding keys.

, 21. .ln an adding machine, a plurality of wheels, .means for rotating the saine, each el said wheels having a row ol teeth, a lever ari'n pivoted adjacent cach ot said wheels and adapted to rotate tl Y. samca pawl carried by each of said levers and 'in cngageinent with the teeth of the respective wheels, a bar in engagement with cach of seid pawls, means whereby each rit-said. wheels is rotated intermittently duringl the rotation of the adjacent wheel, and means carried by eaclici' said wheels` for engagement with the bar of the adjacent wheel to move its ,pawl out of engagement with the teeth land permit of said 22. In an,.,gi(lding machine, a plurality of wheels, each'having a circumferential row of teeth, means ior rotatiiifblr said wjheels, said means. inciudin a pawl in engagement with' In testimony whereof I l1m'e'sig1ied my name to thls speelflcirtlon 11i-tho presence 0L said teeth-,' nieans whereby each wheel is I rotated intermittently during the rotation of tfwo subsoribi'nur witnesses.

"zin adjicent Wheel, 'and menus adapted to-be l -HENIY HALLECK BURTON. op'erted by each of said wheels for moving Witnesses: nterally the-.pawl of the adjacent wheel to ,SAMUEL M. STORER,

'permit of said intermittent rotation. Y .I H. R. STONE. A 

